Question

Instruction format has the following structure.Instruction number OPCODE destination Source $1$ and Source $2$.
$I_1:$ Div $R_3 R_1 R_2;$
$I_2:$ Sub $R_5 R_3 R_4;$
$I_3:$ Add $R_3 R_5 R_6;$
$I_4:$ Mul $R_7 R_3 R_8;$

• A. There is a RAW dependency on $R_3$ between $I_1$ and $I_2$
• B. There is a RAW dependency on $R_3$ between $I_2$ and $I_3$
• C. There is a WAW dependency on $R_3$ between $I_3$ and $I_4$
• D. There is a WAR dependency on $R_3$ between $I_1$ and $I_3$

Answer 1

Answer: (A), (B)

There is a RAW dependency on $R_3$ between $I_1$ and $I_2$

Answer 2

The correct options are (A) and (B).